Car-brake mechanism.



G. S. STEBG. CAB. BRAKE MECHANISM. APPLICATION FILED D120. e, 1913 ,1 2, 7 Patented June 30,1914.

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G. S. STEEG. GAR BRAKE MECHANISM. APPLICATION FILED D110. 6, 1913 1,1 02, 175. Patented June 30,1914,

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and shoes disposed at the upper inner CHARLES s. scams, or WINSLOW, ARIZONA.

' CAR-BRAKE MECHANISM.

Specification of Letters Patent.

Patented June 30, 1914.

Application filed December 6, 1913. Serial No. 805,024.

To all whom it may concern:

Be it known that I, CHAR ns S. Sumo, a citizen of the United States, residing at l/Vinslow, in the county of Navajo and State of Arizona, have invented certain new and useful Improvements in Car-Brake Mecha nism, of which the following is a specification.

My invention relates to improvements in car brake mechanism, the primary object being to provide a generally improved brake rigging of exceedingly simple, cheap, and efficient construction, particularly adapted to be used in connection with car trucks andair brake mechanism of standard equipment, or of any sultable or prevailing form or A further object is the provision of a load and empty brake which is regulated by the action of the truck springs in accord ance with the superposed load, and in carrying out this object the brake hangers are attached to a common vertically movable member such as the truck bolster of a standard truck (as shown in the presentinstance), or if a standard pressed steel truck is employed the brake hangers may be attached to the carbolster, the brake hangers being preferably disposed downwardly and outwardly, or normally extending toward the truck wheel axles, with the brake beams, heads,

uarter portions of the truck wheels so that the brake shoes have a bearing down contact with the upper inner portions of the wheel treads, it being obvious by reason of the above construction, that when the car is empty and the truck springs are relaxed, the

brake shoes will rest on the wheel treads at r a greater and different angle and that in accordance with the superposed load the springs will be compressed thereby corre spondingly moving the brake shoes toward the horizontal planes of the wheel axles and causing the piston travel of the air brake mechanism to be thereby causing to the lading.

A still further object is to improve the general construction, arrangement, and relative disposition of the parts, whereby to reduce to a minimum any tendency of the brake beams or levers to become broken or to fall upon the track as well as to provide means whereby the parts may be readily inspected or repaired.

the car to brake according correspondingly shortened A still further object is to rovide a more efiicient brakin ency of the wheels to slide or skid, the present construction having a tendency to crowd the wheels toward the rails.

With the above mentioned and other ends in view, the invention consists in the novel construction, arrangement and combination of parts, hereinafter described, illustrated in one of its embodiments in the accompanying drawings, and particularly pointed out in the appended claims.

Referring to the drawings, forming a part of. this specification, Figure l, is a top plan view of one side of a standard car truck equipped with the im roved car brake mechanism. Fig. 2, a side elevation of the same showing the parts in their applied or operative position the truck bolster being shown in a slightly depressed or partially loaded position.

Similar numerals of reference designate like parts throughout all the figures of the rawings.

The improved brake mechanism comprises a pair of brake beams 1, rovided at their ends with brake heads or blocks 2, the latter being provided with brake shoes, 3.

As a means for causing the car to brake according to the lading or superposed load, or in other words, to decrease or shorten the air brake piston travel and connections in accordance with the compression of the truck springs, the brake beams and heads 1, and 2, respectively, are connected to or hung from a common vertically movable member, which in the present instance, comprises the truck bolster 4, through the medium of hanger links 5, said hangers, in the present instance,being of substantially U-shape and being pivotally connected, in the present instance, to the brake heads or blocks 2, and connected at their inner or opposite ends to bearing lugs 4*, of the truck bolster by means of bearing pins 4".

The brake beams 1, are adapted to be operated by and connected to the air brake mechanism through the medium of brake levers 6, and 7, connected to each other by means of a brake lever coupling bar 8, said levers 6, and 7, being ivotally connected to the brake beams, 1, by means of bearing brackets 9, the dead lever 7, being connected at one end to a lever guide 10, connected to and carried by the truck bolster 4:, and the contact with the wheel treads and to re uce to a minimum an tend-- live bralre lever 6, being connectedto the air brake mechanism in any suitable and'convenient manner.

' From the foregoing description, taken in connection with the accompanying drawings, the operation and advantages of my invention Will be readily understood.

Having thus described one of the embodiments of my invention, what ll claim and desire to secure by Letters Patent, is,--

l. in a car brake, in combination a truck frame and Wheels, a vertically movable member, brake beam hangers connected to the latter and normally entendin toward the axial centers of said Wheels, bra e beams and heads carried by said hangers and brake operating pistons and lever mechanism connected m said brake beams whereby the travel of said pistons is decreased and the pressure otsaid brake heads increased in accordance With the depression or? said vertically movable member.

2. A car brake, a truck Wheels therefor, a pair of heads arranged in proximity to the upper quarter portions of said Wheels hanger frame and truck brake beams and raoarra links connected therewith, and, a common vertically movable member connected to the inner ends of said links, the inner pivoted connections oil said links being normally dis with said brake beams and heads.

3. In a ear brake, the combination with a truck frame and wheels, and a vertically movable bolster member carri frame; of brake beam and hanger members connected to and disposed on opposite sides oil said vertically movable member, said brake beam members being disposed between the npperinner quarter portions of said Wheels and said hanger members having their inner pivoted connections normally disposed above the horizontal plane of their outer ivoted portions, and rake operating mec anism operatively connected tosaid brake beams.

In testimony whereof l have afixed my signature in presence of two Witnesses.

CHARLES S. S'llElEGr.

Witnesses J. E, l torm Elna Drnrrrr posed above their outer pivoted connections d by said truck 

